CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

This is a debug warning that indicates that filling a hole
failed, it means that it will be tried again with a larger
region. This warning will be gone in release mode.
Using the polyhedron demo, it only took a few seconds to fix
the model so I guess you are in debug mode.

Sebastien.

On 06/27/2018 11:05 AM, sergio wrote:
> Hello,
> I have the following code to repair the candy_bowl.obj file:
>
> typedef CGAL::Exact_predicates_inexact_constructions_kernel Kernel;
>
> bool repairOBJFile(const char* filename)
> {
>         std::cerr << "repairOBJFile " << std::endl;
>         std::ifstream input(filename);
>         if (!input)
>         {
>                 std::cerr << "Cannot open file " << std::endl;
>                 return false;
>         }
>
>         std::vector<Kernel::Point_3> points;
>         std::vector< std::vector<std::size_t> > polygons;
>         if (!CGAL::read_OBJ(input, points, polygons))
>         {
>                 std::cerr << "Error parsing the OFF file " << std::endl;
>                 return false;
>         }
>         //Mesh mesh;
>         Polyhedron mesh;
>         CGAL::Polygon_mesh_processing::orient_polygon_soup(points, polygons);
>         CGAL::Polygon_mesh_processing::polygon_soup_to_polygon_mesh(points,
> polygons, mesh);
>
>         bool solved = solved =
> CGAL::Polygon_mesh_processing::remove_self_intersections(mesh);
>
>         if (!solved)
>         {
>                 std::cout << "Some self-intersection could not be fixed" << 
> std::endl;
>                 //return false;
>         }
>
>         std::ofstream ofs(filename);
>         CGAL::print_polyhedron_wavefront(ofs, mesh);
>
>         return true;
> }
>
> during this process the program generate the following warnings:
>
> CGAL warning: check violation!
> Expression : !"Returning no output. Filling hole with extra triangles is not
> successful!"
> File       :
> C:\dev\CGAL-4.12\include\CGAL/Polygon_mesh_processing/internal/Hole_filling/Triangulate_hole_polyline.h
> Line       : 1103
> Explanation:
> Refer to the bug-reporting instructions at
> https://www.cgal.org/bug_report.html
>
> The model is repaired after 971 seconds.
>
> from:
>
> Number self-intersections:..........290 (0.0618804 % of faces)
> Number non manifold edge:...........0 (0 % of edges)
> Number non manifold vertex:.........63 (0.026893 % of vertices)
> IsCoherentlyOriented:...............False
> IsOrientable:.......................False
>   
> to
>
> Number self-intersections:..........4 (0.000857012 % of faces)
> Number non manifold edge:...........0 (0 % of edges)
> Number non manifold vertex:.........0 (0 % of vertices)
> IsCoherentlyOriented:...............True
> IsOrientable:.......................True
>
> Questions:
> 1. Is it possible to fix the problem related with the warnings?
> 2. How we can reduce the time of repairing?
>
>
> the file candy_bowl.obj is included in:
> https://drive.google.com/file/d/1UCsstxwBQF--uFMXxcKR4JrQDGdHbB94/view?usp=sharing
>
> Thanks in advance!
> Sergio
>
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> --
> Sent from: http://cgal-discuss.949826.n4.nabble.com/